# SDR SIMA20170404001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2017
- Submitted: April 4, 2017
- Operation: Air carrier
- Aircraft: [N222NS](https://openairdocs.org/aircraft/N222NS), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000528
- Aircraft time: 3,146 hours, 2,316 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Mau
- Condition: Malfunctioned
- Stage of operation: TX
- How discovered: O
- Nature of condition: H, G, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20170404001

## Discrepancy

AFTER LANDING,  SHUT THE NR 2 ENGINE DOWN DURING TAXI IN, A  MAJOR MALFUNCTION OCCURED.  LOST BRAKES, NOSE WHEEL STEERING, ADS2,  RA.NAV 2, AND HAD NUMEROUS EICAS MESSAGES.  MOST SYSTEMS RESET THEMSELVES.  DOWNLOADED CMC, FOUND MAU2A, MAU2B, 3A & 3B MOMENTARILY FAILED DURING AC BUSS TRANSFER.  PERFORMED MAU 2/3 RESET AND OPS CHECKED IAW AMM 24-21-01, & 24-51-11 NO DEFECTS NOTED

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